INDEPENDENT
TESTING and CERTIFICATION: Only UL 2079 tests
expansion joint movement (cycling expansion and contraction) during
fire-rating testing. This is crucial because expansion joints move. Non-UL
tests do not combine movement and fire blocking and therefore do not
adequately test the integrity of the expansion joint in simulated real world
conditions. Demand UL/ULC UL 2079
testing and certification in any life-safety application where an expansion
joint needs to be fire-rated.